Siege of Sinmi-do

The Siege of Sinmi-do (920) was a battle between the Liao dynasty and Silla during the Chinese-Korean wars of the Middle Ages.

History
The Chinese and Koreans built their own civilizations on the islands of Ka-do and Sinmi-do in the West Korea Bay in present-day North Korea in the Dark Age, bringing them into conflict with each other. The Chinese built up a town that developed into a major military city, with several farms in addition to military buildings, a castle, a temple, and a university. Meanwhile, the Koreans did not build up an army, with no military buildings. After acquiring much more technology as they entered the Imperial Age, the Chinese invaded the Korean island with five transport ships. The Chinese used mangonels and their cavalry, crossbowmen, and men-at-arms to destroy the whole Korean base without any losses, with the mangonels destroying some fishing ships and several Korean buildings. The Korean base was destroyed, and the Koreans surrendered to the Chinese. 16 Koreans were killed and their town reduced to rubble.